EP3886490B1 - Transmission method and apparatus based on direct link - Google Patents
Transmission method and apparatus based on direct link Download PDFInfo
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- EP3886490B1 EP3886490B1 EP18940742.2A EP18940742A EP3886490B1 EP 3886490 B1 EP3886490 B1 EP 3886490B1 EP 18940742 A EP18940742 A EP 18940742A EP 3886490 B1 EP3886490 B1 EP 3886490B1
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- sidelink channel
- sidelink
- indication information
- target indication
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- 230000005540 biological transmission Effects 0.000 title claims description 82
- 238000000034 method Methods 0.000 title claims description 51
- 108010076504 Protein Sorting Signals Proteins 0.000 claims description 41
- 230000004044 response Effects 0.000 claims description 21
- 238000010586 diagram Methods 0.000 description 26
- 238000004891 communication Methods 0.000 description 18
- 238000004590 computer program Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0072—Error control for data other than payload data, e.g. control data
- H04L1/0073—Special arrangements for feedback channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/23—Manipulation of direct-mode connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
Definitions
- the present invention relates to the field of communications, and in particular, relates to sidelink-based transmission methods and apparatuses.
- the terminal has to multiplex and transmit the uplink control information and the uplink data in the PUSCH, as well as abandon the transmission in the PUCCH.
- the uplink control information includes terminal's feedback information on downlink data transmitted from a base station.
- the respective resources for transmitting the uplink data and transmitting the uplink control information are both scheduled by the base station, and the respective receivers of the uplink data and of the uplink control information are both the base station. Therefore, the base station, from its side, can accurately determine whether the terminal is expected to multiplex and transmit the uplink control information and the uplink data in the PUSCH within a given time unit.
- V2X Vehicle to Everything
- the receiver of the data and the receiver of the feedback information may be different.
- corresponding resources and a corresponding modulation and coding scheme which are adopted in the sidelink communication when the transmitter transmits the data and the feedback information, are determined by the transmitter.
- the receiver cannot accurately determine whether the feedback information besides the data exists in a received physical sidelink shared channel (PSSCH), and the receiver cannot know how the PSSCH is occupied by the control information which is multiplexed with the data in the PSSCH, and cannot known what resources are occupied.
- PSSCH physical sidelink shared channel
- US2017/273130A1 describes apparatuses, methods, and storage media for mapping media access control (MAC) protocol data units (PDUs) that are used to transmit scheduling assignment (SA) discovery, and/or device-to-device (D2D) data, which describes how one or more MAC PDUs may be mapped into a time resource pattern for transmissions (T-RPT), how and when a UE may skip subframes in transmissions of the SA and/or data, how a UE may behave if the UE cannot transmit one or more scheduled instances of SA or data, and resolution of collisions of D2D discovery messages in the time domain.
- MAC media access control
- PDUs protocol data units
- SA scheduling assignment
- D2D device-to-device
- WO 2018/074876 A1 relates to a method and a device for performing sidelink transmission prioritized over the uplink transmission in wireless communication system, the method comprising: generating uplink data and sidelink data to be transmitted in a subframe; determining that uplink transmission is denied in the subframe if sidelink transmission is prioritized over the uplink transmission; and transmitting the sidelink data in the subframe where the uplink transmission is denied, wherein the subframe is one of subframes allowed for denial of the uplink transmission during a validity period.
- first, second, third, etc. may be used in the present invention to describe various information, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, first information may be referred as second information; and similarly, second information may also be referred as first information.
- first information may be referred as second information; and similarly, second information may also be referred as first information.
- word “if” as used herein can be interpreted as “upon” or "when” or "in response to determining”.
- a sidelink communication mode has been introduced.
- the direct communication between user equipment is achieved by utilizing a sidelink between the user equipment, which is beneficial to meet the requirements of shorter communication delay and higher wireless resource utilization efficiency.
- target information is transmitted on the basis of the sidelink communication.
- the sidelink-based transmission methods provided by the examples of the present invention are firstly introduced from a view of a transmitter.
- FIG. 1 is a flowchart illustrating a sidelink-based transmission method according to the example, the following steps are included.
- step 101 it is determined whether one or more resources occupied by a first sidelink channel and one or more resources occupied by a second sidelink channel conflict in a time domain.
- the first sidelink channel is used for transmitting data for the sidelink and the second sidelink channel is used for transmitting feedback information for the sidelink.
- target information is transmitted to a receiver through a third sidelink channel if the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel conflict in the time domain.
- the target information includes at least one of the data or the feedback information.
- the feedback information may be Hybrid Automatic Repeat request (HARQ) feedback information, Channel State Information (CSI), or the like.
- HARQ Hybrid Automatic Repeat request
- CSI Channel State Information
- the transmitter multiplexes the data and the feedback information together and transmit them to the receiver through the third sidelink channel if a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information, that is, both the data and the feedback information are expected to be transmitted to a same receiver.
- the first sidelink channel used for transmitting the data for the sidelink is directly taken as the third siedelink channel.
- the first sidelink channel may be a Physical Sidelink shared channel (PSSCH), and the second sidelink channel may be a separate channel for transmitting the feedback information.
- PSSCH Physical Sidelink shared channel
- the transmitter may only transmit the data or only transmit the feedback information to the receiver. That is, the target information consists of either the data or the feedback information.
- the transmitter may adopt the first sidelink channel to transmit the data to the receiver through the first sidelink channel when the target information consists of the data, and adopt the second sidelink channel to transmit the feedback information to the receiver through the second sidelink channel when the target information consists of the feedback information.
- the receiver address corresponding to the feedback information is a source address of the data associated with the feedback information.
- the feedback information is HARQ feedback information of data A
- the source address corresponding to data A is IP address m
- the receiver address corresponding to the feedback information is the IP address m .
- the transmitter may determine that the target information consists of the data or the feedback information based on respective transmission priorities of the data and the feedback information.
- the transmitter may determine that the target information consists of the feedback information.
- the transmitter may determine that the target information consists of the data.
- the transmitter can transmit the information with greater importance first to the receiver based on the respective transmission priorities of the data and the feedback information.
- the method may further include the following step.
- At step 103 at least one of first target indication information or second target indication information is transmitted to the receiver through a fourth sidelink channel.
- the numbering of the steps is not used to limit any order of performing the steps.
- the step 103 may be performed before or at the time of performing the step 102, which is not limited in the present invention.
- the transmitter may transmit the first target indication information to the receiver through the fourth sidelink channel, so as to facilitate the receiver to be informed whether the data and the feedback information are included in the first sidelink channel that is received currently.
- the receiver defaults that the transmitter transmits the data and the feedback information simultaneously through the first sidelink channel, and thus the transmitter may also transmit the second target indication information to the receiver through the fourth sidelink channel, so as to make the receiver demodulate the feedback information correctly.
- the transmitter may also transmit the first target indication information and the second target indication information to the receiver through the fourth sidelink channel.
- the second target indication information is configured to indicate a modulation and coding efficiency at which the feedback information is transmitted through the third sidelink channel.
- the second target indication information may indicate a ratio of the modulation and coding efficiency of the data with respect to that of the feedback information.
- M is the bit number of the data to be transmitted
- N is the number of time-frequency resources available for the first sidelink channel
- K is the bit number of the feedback information to be transmitted
- the second target indication information indicates the ratio beta of the modulation and coding efficiency of the data with respect to that of the feedback information.
- the fourth sidelink channel is configured to transmit control information associated with the data.
- the first sidelink channel may be taken as the fourth sidelink channel.
- the fourth sidelink channel may be a separate channel for transmitting the control information.
- the step 103 may be implemented in any one of the following ways.
- At least one of the first target indication information or the second target indication information is represented by a demodulation reference signal sequence in the fourth sidelink channel or by position information corresponding to the demodulation reference signal sequence.
- the transmitter when transmitting the control information associated with the data to the receiver through the fourth sidelink channel, the transmitter may set the demodulation reference signal sequence corresponding to the fourth sidelink channel to a preset demodulation reference signal sequence.
- the receiver may determine, based on the preset demodulation reference signal sequence, that the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e., the first sidelink channel. Or, the receiver may determine, based on the preset demodulation reference signal sequence, that the second target indication information indicates a preset value. Or, based on the preset demodulation reference signal sequence, the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e., the first sidelink channel, and determine that the second target indication information indicates the preset value.
- the receiver may determine, if the demodulation reference signal sequence corresponding to the fourth sidelink channel does not adopt the preset demodulation reference signal sequence, that the first target indication information indicates that the feedback information is not included in the third sidelink channel, i.e., the first sidelink channel.
- the transmitter may set the demodulation reference signal sequence to a designated position.
- the receiver determines that the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e, the first sidelink channel, or determines that the second target indication information indicate the preset value, or determines that the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e., the first sidelink channel, and that the second target indication information indicates the preset value.
- the receiver may determine that the first target indication information indicates that the feedback information is not included in the third sidelink channel, i.e., the first sidelink channel.
- the demodulation reference signal sequence carried in the fourth sidelink channel is located at the designated position, for example, on the 0th, 4th, and 8th REs of every Resource Block (RB), it means that the first target indication information indicates that the target information in the first sidelink channel includes the data and the feedback information, and/or means that the second target indication information indicates the preset value.
- the first target indication information indicates that the target information in the first sidelink channel includes the data and the feedback information
- the second target indication information indicates the preset value.
- the demodulation reference signal sequence carried in the fourth sidelink channel is located at other positions, for example, on the 1st, 5th, and 9th REs of every RB, it means that the first target indication information indicates that the feedback information is not included in the first sidelink channel.
- the transmitter may represent at least one of the first target indication information or the second target indication information by a demodulation reference signal sequence or position information corresponding to the demodulation reference signal sequence in the fourth sidelink channel, which reduces the number of bits occupied by the control information and has a high availability.
- target control information is transmitted to the receiver through the fourth sidelink channel.
- the target control information carries at least one of the first target indication information or the second target indication information.
- the target control information may be Sidelink Control Information (SCI).
- SCI is essential control information transmitted by the transmitter to the receiver in the sidelink communication.
- the transmitter may add respective information field(s) corresponding to the first target indication information and/or the second target indication information into the SCI, so that at least one of the first target indication information or the second target indication information is transmitted to the receiver through the SCI.
- the first target indication information which is taken as an example, is represented by adding only a 1-bit information field into the SCI. For example, when the bit value of the information field corresponding to the first target indication information is 1, it means the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e., the first sidelink channel, and when the bit value of the information field corresponding to the first target indication information is 0, it means the first target indication information indicates that the feedback information is not included in the third sidelink channel, i.e., the first sidelink channel.
- the reverse may work similarly.
- the bit value corresponding to the information field is 1, it means the first target indication information indicates that the feedback information is not included in the third sidelink channel, i.e., the first sidelink channel, and when the bit value corresponding to the information field is 0, it means the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e., the first sidelink channel.
- a specific value corresponding to the second target indication information may be represented by adding information field of at least one bit into the SCI, or the second target indication information is made to indicate the preset value by adding information field of at least one bit.
- the bit value of the information field corresponding to the second target indication information is 01
- the bit value of the information field corresponding to the second target indication information is 10
- the second target indication information indicates 10 or a second preset value b corresonding to 10.
- the transmitter may further transmit the target control information to the receiver through the fourth sidelink channel, and the target control information carries at least one of the first target indication information or the second target indication information.
- the target control information carries at least one of the first target indication information or the second target indication information.
- the transmitter may transmit a modulation and coding rate, at which sub-information with a designated feedback information type is transmitted through the third sidelink channel, to the receiver.
- the transmitter may transmit the modulation and coding efficiency corresponding to the HARQ feedback information to the receiver through the fourth sidelink channel.
- the designated feedback information type may come from all feedback information types or a part thereof, which is not limited in the present invention.
- the transmitter may set different modulation and coding rates, at which the sub-information of respective designated feedback information types is transmitted through the third sidelink channel, to a same value or different values.
- the modulation and coding efficiency corresponding to the HARQ feedback information is a1
- the modulation and coding efficiency corresponding to the CSI is a2
- the value of a1 and the value of a2 may be the same or different, which is not limited in the present invention.
- the transmitter may transmit to the receiver the modulation and coding efficiency at which the sub-information with the designated feedback information type is transmitted through the third sidelink channel. Thereafter, the receiver can correctly demodulate the plurality of pieces of sub-information of different feedback information types.
- FIG. 3 is a flowchart illustrating another sidelink-based transmission method according to the example illustrated in FIG. 1 , if the one or more resources occupied by the first sidelink channel are selected by the transmitter, the method may further include the following step.
- one or more resources that do not overlap with the one or more resources occupied by the second sidelink channel in time resource are selected as the one or more resources occupied by the first sidelink channel.
- the transmitter may select one or more resources that do not overlap with the one or more resources occupied by the second sidelink channel in time resource as the one or more resources occupied by the first sidelink channel. Therefore, it can avoid a conflict in the time domain between the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel.
- the transmitter selects the one or more resource that do not overlap with the one or more resources occupied by the second sidelink channel in time resource as the one or more resources occupied by the first sidelink channel, it has been determined that the receiver address corresponding to the data is inconsistent with the receiver address corresponding to the feedback information and thus the data and the feedback information cannot be multiplexed in the third sidelink channel for synchronous transmission.
- the second sidelink channel may be selected by the transmitter or another device, and said another device may be a base station, a receiver, or other third-party device, which is not limited in the present invention.
- FIG. 4 is a flowchart illustrating another sidelink-based transmission method according to the example illustrated in FIG. 1 , if the one or more resources occupied by the second sidelink channel are selected by the transmitter, the method may further include the following step.
- one or more resources that do not overlap with the one or more resources occupied by the first sidelink channel in time resource are selected as the one or more resources occupied by the second sidelink channel.
- the transmitter may select one or more resources that do not overlap with the one or more resources occupied by the first sidelink channel in time resource as the one or more resources occupied by the second sidelink channel. Therefore, it can avoid a conflict in the time domain between the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel.
- the transmitter selects the one or more resource that do not overlap with the one or more resources occupied by the first sidelink channel in time resource as the one or more resources occupied by the second sidelink channel, it has been determined that the receiver address corresponding to the data is inconsistent with the receiver address corresponding to the feedback information and thus the data and the feedback information cannot be multiplexed in the third sidelink channel for synchronous transmission.
- the first sidelink channel may be selected by the transmitter or another device, and said another device may be a base station, a receiver, or other third-party device, which is not limited in the present invention.
- An example of the present invention provides another sidelink-based transmission method, which is applicable to the receiver and includes the following step.
- target information transmitted by a transmitter through a first sidelink channel is received.
- the first sidelink channel is used for transmitting data for the sidelink, and the target information includes the data or includes the data and feedback information.
- the receiver receives the target information transmitted by the transmitter through the first sidelink channel.
- the first sidelink channel is used for transmitting the data for the sidelink
- the target information includes the data or includes the data and the feedback information. Therefore, during a process of the sidelink communication, it achieves a purpose that the data and the feedback information are multiplexed in the first sidelink channel used for transmitting the data for the sidelink.
- the transmitter transmits the target information, i.e., the data and the feedback information, to the receiver through a third sidelink channel, i.e., the first sidelink channel if a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information.
- the receiver receives the target information directly.
- the transmitter may transmit the target information, i.e., the data, to the receiver through the first sidelink channel.
- the receiver can receive the target information directly.
- the transmitter may transmit the feedback information to the receiver through a second sidelink channel based on the related art.
- the receiver can receive the feedback information directly.
- FIG. 5 is a flowchart illustrating a sidelink-based transmission method according to the example, besides the step 201, the following step may be included.
- At step 202 at least one of first target indication information or second target indication information transmitted by the transmitter through a fourth sidelink channel is received.
- the transmitter may further transmit at least one of the first target indication information or the second target indication information to the receiver through the fourth sidelink channel.
- the fourth sidelink channel is configured to transmit control information associated with the data; the first target indication information is configured to indicate whether the data and the feedback information are included in the third sidelink channel; and the second target indication information is configured to indicate a modulation and coding efficiency at which the feedback information is transmitted through the third sidelink channel.
- the second target indication information may indicate a ratio of the modulation and coding efficiency of the data with respect to that of the feedback information.
- the receiver may receive at least one of the first target indication information or the second target indication information in any one of the following ways, where the at least one of the first target indication information or the second target indication information is transmitted by the transmitter through the fourth sidelink channel.
- a demodulation reference signal sequence received from the fourth sidelink channel indicates a preset demodulation reference signal sequence, it is determined that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and/or it is determined that the second target indication information indicates a preset value.
- the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel.
- the receiver defaults that the data and the feedback information are included in the first sidelink channel.
- the receiver may determine that the second target indication information indicates the preset value if the demodulation reference signal sequence indicates the preset demodulation reference signal sequence.
- the demodulation reference signal sequence received by the receiver from the fourth sidelink channel indicates the preset demodulation reference signal sequence.
- the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and also determine that the second target indication information indicates the preset value.
- the receiver may determine that the first target indication information indicates that the feedback information is not included in the first sidelink channel.
- position information corresponding to the demodulation reference signal sequence received from the fourth sidelink channel indicates a designated position, it is determined that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and/or it is determined that the second target indication information indicates a preset value.
- the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel.
- the receiver defaults that the data and the feedback information are included in the first sidelink channel.
- the receiver may determine that the second target indication information indicates the preset value if the demodulation reference signal sequence is located in the designated position.
- the demodulation reference signal sequence received by the receiver from the fourth sidelink channel is located in the designated position.
- the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and also determine that the second target indication information indicates the preset value.
- the receiver may determine that the first target indication information indicates that the feedback information is not included in the first sidelink channel.
- target control information transmitted by the transmitter through the fourth sidelink channel is received.
- the target control information carries at least one of the first target indication information or the second target indication information.
- the target control information may be SCI information.
- it may configure corresponding information field(s) for at least one of the first target indication information or the second target indication information in the SCI information.
- the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel.
- the bit value of the information field corresponding to the first target indication information is 0, it means the first target indication information indicates that the feedback information is not included in the first sidelink channel. The reverse may work similarly.
- the receiver determines that the bit value of the information field corresponding to the second target indication information is 01, it means the second target indication information indicates 01 or a first preset value a corresponding to 01, and if the bit value of the information field corresponding to the second target indication information is 10, it means the second target indication information indicates 10 or a second preset value b corresponding to 10.
- the transmitter may transmit a modulation and coding rate, at which sub-information with a designated feedback information type is transmitted through the third sidelink channel, to the receiver.
- the second target indication information received by the receiver may include the modulation and coding efficiency at which the sub-information with the designated feedback information type is transmitted by the transmitter through the first sidelink channel.
- the designated feedback information types include an HARQ feedback type and an SCI type. Therefore, the receiver may receive the modulation and coding efficiency a1 corresponding to the HARQ feedback information and the modulation and coding efficiency a2 corresponding to the CSI, which are transmitted by the transmitter.
- the values of a1 and a2 may be the same or different.
- the modulation and coding efficiency of the sub-information corresponding to another feedback information type may be a preset modulation and coding efficiency b .
- the receiver may demodulate the corresponding sub-information from the first sidelink channel based on respective modulation and coding rates corresponding to the sub-information of different feedback information types according to the related art.
- FIG. 6 is a flowchart illustrating another sidelink-based transmission method not according to the present invention, the following steps may be included.
- the transmitter determines whether one or more resources occupied by a first sidelink channel and one or more resources occupied by a second sidelink channel conflict in a time domain.
- the first sidelink channel is used for transmitting data for the sidelink
- the second sidelink channel is used for transmitting feedback information for the sidelink.
- target information is transmitted to a receiver through a third sidelink channel if the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel conflict in the time domain.
- the target information includes at least one of the data or the feedback information.
- the target information includes the data and the feedback information
- the first sidelink channel is taken as the third sidelink channel.
- the target information consists of the data or the feedback information. Further, if a transmission priority of the data is higher than that of the feedback information, the target information is the data, and the first sidelink channel is taken as the third sidelink channel; if the transmission priority of the feedback information is higher than or equal to that of the data, the target information is the feedback information, and the second sidelink channel is taken as the third sidelink channel.
- the transmitter transmits at least one of the first target indication information or the second target indication information to the receiver through the fourth sidelink channel.
- step 303 may be performed before or at the time of performing the step 302.
- the order of performing various steps is not limited in the examples of the present invention.
- the data and the feedback information are multiplexed in the first sidelink channel when a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information. Therefore, during a process of the sidelink communication, it achieves a purpose that the data and the feedback information are multiplexed in the first sidelink channel used for transmitting the data for the sidelink.
- the information with higher transmission priority may be transmitted to the receiver through a corresponding sidelink channel, which achieves a purpose of transmitting the data or the feedback information to the receiver through the corresponding sidelink channel.
- the present invention also provides examples of apparatuses for implementing application functions, and examples of corresponding base stations and terminals.
- the following examples are not according to the invention and are present for illustration purposes only.
- FIG. 7 is a block diagram illustrating a sidelink-based transmission apparatus according to an example.
- the apparatus is applicable to a transmitter and includes:
- the first sidelink channel is taken as the third sidelink channel in response to determining that the target information includes the data and the feedback information.
- the apparatus further includes: a second transmitting module 430 that is configured to transmit at least one of first target indication information or second target indication information to the receiver through a fourth sidelink channel.
- the fourth sidelink channel is configured to transmit control information associated with the data; the first target indication information is configured to indicate whether the data and the feedback information are included in the third sidelink channel; and the second target indication information is configured to indicate a modulation and coding efficiency at which the feedback information is transmitted through the third sidelink channel.
- the second transmitting module 430 includes:
- the second transmitting module 430 includes: a transmitting submodule 433 that is configured to transmit target control information to the receiver through the fourth sidelink channel, where the target control information carries at least one of the first target indication information or the second target indication information.
- the second target indication information includes a modulation and coding efficiency at which sub-information with a designated feedback information type is transmitted through the third sidelink channel.
- a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information.
- the first sidelink channel is taken as the third sidelink channel in response to determining that the target information consists of the data; and the second sidelink channel is taken as the third sidelink channel in response to determining that the target information consists of the feedback information.
- the apparatus further includes: a first selecting module 440 that is configured to select one or more resources that do not overlap with the one or more resources occupied by the second sidelink channel in time resource as the one or more resources occupied by the first sidelink channel in response to determining that the one or more resources occupied by the first sidelink channel are selected by the transmitter.
- a first selecting module 440 that is configured to select one or more resources that do not overlap with the one or more resources occupied by the second sidelink channel in time resource as the one or more resources occupied by the first sidelink channel in response to determining that the one or more resources occupied by the first sidelink channel are selected by the transmitter.
- the apparatus further includes: a second selecting module 450 that is configured to select one or more resources that do not overlap with the resource occupied by the first sidelink channel in time resource as the one or more resources occupied by the second sidelink channel in response to determining that the one or more resources occupied by the second sidelink channel are selected by the transmitter.
- a second selecting module 450 that is configured to select one or more resources that do not overlap with the resource occupied by the first sidelink channel in time resource as the one or more resources occupied by the second sidelink channel in response to determining that the one or more resources occupied by the second sidelink channel are selected by the transmitter.
- a receiver address corresponding to the data is inconsistent with a receiver address corresponding to the feedback information.
- the apparatus is applicable to a receiver and includes: a first receiving module 510 that is configured to receive target information transmitted by a transmitter through a first sidelink channel, where the first sidelink channel is used for transmitting data for the sidelink, and where the target information includes the data or includes the data and feedback information.
- the apparatus further includes: a second receiving module 520 that is configured to receive at least one of first target indication information or second target indication information transmitted by the transmitter through a fourth sidelink channel.
- the fourth sidelink channel is configured to transmit control information associated with the data; the first target indication information is configured to indicate whether the data and the feedback information are included in the third sidelink channel; and the second target indication information is configured to indicate a modulation and coding efficiency at which the feedback information is transmitted through the third sidelink channel.
- the second receiving module 520 includes: a first determining submodule 521 that is configured to determine, in response to determining that a demodulation reference signal sequence received from the fourth sidelink channel indicates a preset demodulation reference signal sequence, that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and/or that the second target indication information indicates a preset value.
- the second receiving module 520 includes: a second determining submodule 522 that is configured to determine, in response to determining that position information corresponding to a demodulation reference signal sequence received from the fourth sidelink channel indicates a designated position, that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and/or that the second target indication information indicates a preset value.
- the second receiving module 520 includes: a receiving submodule 523 that is configured to receive target control information transmitted by the transmitter through the fourth sidelink channel, where the target control information carries at least one of the first target indication information or the second target indication information.
- the second target indication information in response to determining that the feedback information includes a plurality of pieces of sub-information corresponding to different feedback information types, includes a modulation and coding efficiency at which sub-information with a designated feedback information type is transmitted by the transmitter through the first sidelink channel.
- the present invention also provides a computer-readable storage medium storing a computer program, which is not according to the invention and is present for illustration purposes only.
- the computer program is configured to execute any one of the sidelink-based transmission methods applicable to a transmitter side described above.
- the present invention also provides a computer-readable storage medium storing a computer program, which is not according to the invention and is present for illustration purposes only.
- the computer program is configured to execute any one of the sidelink-based transmission methods applicable to a receiver side described above.
- the present invention also provides a sidelink-based transmission apparatus, which is applicable to a transmitter and includes:
- FIG. 18 is a schematic structural diagram illustrating a sidelink-based transmission apparatus 1800 according to an example.
- the apparatus 1800 is provided as a transmitter device.
- the apparatus 1800 includes a processing component 1822, a wireless transmission/reception component 1824, an antenna component 1826, and a signal processing part peculiar to a wireless interface.
- the processing component 1822 further includes one or more processors.
- One of the processors in the processing component 1822 is configured to perform any one of the sidelink-based transmission methods applicable to the transmitter described above.
- the present invention also provides a sidelink-based transmission apparatus, which is applicable to a receiver and includes:
- FIG. 19 is a schematic structural diagram illustrating a sidelink-based transmission apparatus 1900 according to an example.
- the apparatus 1900 is provided as a receiver device.
- the apparatus 1900 includes a processing component 1922, a wireless transmission/reception component 1924, an antenna component 1926, and a signal processing part peculiar to a wireless interface.
- the processing component 1922 further includes one or more processors.
- One of the processors in the processing component 1922 is configured to perform any one of the sidelink-based transmission methods applicable to the receiver described above.
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Description
- The present invention relates to the field of communications, and in particular, relates to sidelink-based transmission methods and apparatuses.
- According to Release 15 (Rel 15) on New Radio (NR), in the case that user equipment is configured to transmit uplink data through a physical uplink shared channel (PUSCH) and transmit uplink control information through a physical uplink control channel (PUCCH) in a same time unit, for example, in a slot, and one or more resources occupied by the PUSCH overlap with one or more resources occupied by the PUCCH in a time domain, the terminal has to multiplex and transmit the uplink control information and the uplink data in the PUSCH, as well as abandon the transmission in the PUCCH. The uplink control information includes terminal's feedback information on downlink data transmitted from a base station.
- In the NR, the respective resources for transmitting the uplink data and transmitting the uplink control information are both scheduled by the base station, and the respective receivers of the uplink data and of the uplink control information are both the base station. Therefore, the base station, from its side, can accurately determine whether the terminal is expected to multiplex and transmit the uplink control information and the uplink data in the PUSCH within a given time unit.
- However, in a sidelink communication of Vehicle to Everything (V2X, which is a wireless communication technology for vehicles) in the NR, the receiver of the data and the receiver of the feedback information may be different. In addition, it is not yet concluded in current standards whether corresponding resources and a corresponding modulation and coding scheme, which are adopted in the sidelink communication when the transmitter transmits the data and the feedback information, are determined by the transmitter.
- In such case, the receiver cannot accurately determine whether the feedback information besides the data exists in a received physical sidelink shared channel (PSSCH), and the receiver cannot know how the PSSCH is occupied by the control information which is multiplexed with the data in the PSSCH, and cannot known what resources are occupied.
-
US2017/273130A1 describes apparatuses, methods, and storage media for mapping media access control (MAC) protocol data units (PDUs) that are used to transmit scheduling assignment (SA) discovery, and/or device-to-device (D2D) data, which describes how one or more MAC PDUs may be mapped into a time resource pattern for transmissions (T-RPT), how and when a UE may skip subframes in transmissions of the SA and/or data, how a UE may behave if the UE cannot transmit one or more scheduled instances of SA or data, and resolution of collisions of D2D discovery messages in the time domain. -
WO 2018/074876 A1 relates to a method and a device for performing sidelink transmission prioritized over the uplink transmission in wireless communication system, the method comprising: generating uplink data and sidelink data to be transmitted in a subframe; determining that uplink transmission is denied in the subframe if sidelink transmission is prioritized over the uplink transmission; and transmitting the sidelink data in the subframe where the uplink transmission is denied, wherein the subframe is one of subframes allowed for denial of the uplink transmission during a validity period. - In order to overcome the problems in the related art, the present invention is set out in the appended set of claims.
- The technical solutions provided by the present invention may produce the following beneficial effects.
- The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate examples in accordance with the present invention, and together with the specification are used to explain the principle of the present invention.
-
FIG. 1 is a schematic flowchart illustrating a sidelink-based transmission method. -
FIG. 2 is a schematic method. -
FIG. 3 is a schematic flowchart illustrating another sidelink-based transmission method. -
FIG. 4 is a schematic flowchart illustrating another sidelink-based transmission method. -
FIG. 5 is a flowchart illustrating another sidelink-based transmission method. -
FIG. 6 is a flowchart illustrating another sidelink-based transmission method. -
FIG. 7 is a block diagram illustrating a sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 8 is a block diagram illustrating another sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 9 is a block diagram illustrating another sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 10 is a block diagram illustrating another sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 11 is a block diagram illustrating another sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 12 is a block diagram illustrating another sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 13 is a block diagram illustrating another sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 14 is a block diagram illustrating another sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 15 is a block diagram illustrating another sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 16 is a block diagram illustrating another sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 17 is a block diagram illustrating another sidelink-based transmission apparatus according to an example which is not according to the invention and is present for illustration purpose only. -
FIG. 18 is a schematic structural diagram for a sidelink-based transmission apparatus illustrated according to an example. -
Fig. 19 is a schematic structural diagram for another sidelink-based transmission apparatus illustrated according to an example of the present invention. - Examples will be described in detail herein, with the illustrations thereof represented in the drawings. When the following descriptions involve the drawings, like numerals in different drawings refer to like or similar elements unless otherwise indicated. The implementation manners described in the following examples do not represent all the implementation manners consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present invention as detailed in the appended claims.
- The terms used in the present invention are only for the purpose of describing specific examples, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the present invention and appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should further be understood that the term "and/or" used herein refers to and includes any or all possible combinations of one or more associated listed items.
- It should be understood that although the terms first, second, third, etc. may be used in the present invention to describe various information, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, first information may be referred as second information; and similarly, second information may also be referred as first information. Depending on the context, the word "if" as used herein can be interpreted as "upon" or "when" or "in response to determining".
- At present, in order to support direct communication between devices, a sidelink communication mode has been introduced. For the sidelink communication, the direct communication between user equipment is achieved by utilizing a sidelink between the user equipment, which is beneficial to meet the requirements of shorter communication delay and higher wireless resource utilization efficiency.
- Just as in examples of the present invention, target information is transmitted on the basis of the sidelink communication. Next, the sidelink-based transmission methods provided by the examples of the present invention are firstly introduced from a view of a transmitter.
- In an example not according to the present invention, a sidelink-based transmission method is provided and applicable to the transmitter. Referring to
FIG. 1 , which is a flowchart illustrating a sidelink-based transmission method according to the example, the following steps are included. - At
step 101, it is determined whether one or more resources occupied by a first sidelink channel and one or more resources occupied by a second sidelink channel conflict in a time domain. The first sidelink channel is used for transmitting data for the sidelink and the second sidelink channel is used for transmitting feedback information for the sidelink. - At
step 102, target information is transmitted to a receiver through a third sidelink channel if the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel conflict in the time domain. The target information includes at least one of the data or the feedback information. - In the above not claimed example, in the case that one or more resources occupied by a data channel of the sidelink communication and one or more resources occupied by a feedback information channel of the sidelink communication conflict in a time domain, it can achieve a purpose that at least one of the data or the feedback information is transmitted to the receiver through the third sidelink channel.
- With respect to the
step 101, the feedback information may be Hybrid Automatic Repeat request (HARQ) feedback information, Channel State Information (CSI), or the like. - With respect to the
step 102, once the transmitter determines that the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel conflict in the time domain, the transmitter multiplexes the data and the feedback information together and transmit them to the receiver through the third sidelink channel if a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information, that is, both the data and the feedback information are expected to be transmitted to a same receiver. The first sidelink channel used for transmitting the data for the sidelink is directly taken as the third siedelink channel. The first sidelink channel may be a Physical Sidelink shared channel (PSSCH), and the second sidelink channel may be a separate channel for transmitting the feedback information. - If the receiver address corresponding to the data is inconsistent with the receiver address corresponding to the feedback information, the data and the feedback information cannot be multiplexed in a same sidelink channel. In one or more not claimed embodiments, the transmitter may only transmit the data or only transmit the feedback information to the receiver. That is, the target information consists of either the data or the feedback information.
- The transmitter may adopt the first sidelink channel to transmit the data to the receiver through the first sidelink channel when the target information consists of the data, and adopt the second sidelink channel to transmit the feedback information to the receiver through the second sidelink channel when the target information consists of the feedback information.
- The receiver address corresponding to the feedback information is a source address of the data associated with the feedback information. For example, the feedback information is HARQ feedback information of data A, the source address corresponding to data A is IP address m, and thus the receiver address corresponding to the feedback information is the IP address m.
- According to an example, optionally, in one or more embodiments, if the receiver address corresponding to the data is inconsistent with the receiver address corresponding to the feedback information, the transmitter may determine that the target information consists of the data or the feedback information based on respective transmission priorities of the data and the feedback information.
- For example, when the transmission priority of the feedback information is higher than or equal to the transmission priority of the data, the transmitter may determine that the target information consists of the feedback information. When the transmission priority of the feedback information is lower than the transmission priority of the data, the transmitter may determine that the target information consists of the data.
- In the above example, the transmitter can transmit the information with greater importance first to the receiver based on the respective transmission priorities of the data and the feedback information.
- In an example, referring to
FIG. 2 which is a flowchart of another sidelink-based transmission method on the basis of the example illustrated inFIG. 1 , if the target information includes the data and the feedback information, the method may further include the following step. - At
step 103, at least one of first target indication information or second target indication information is transmitted to the receiver through a fourth sidelink channel. - In the examples of the present invention, the numbering of the steps is not used to limit any order of performing the steps. The
step 103 may be performed before or at the time of performing thestep 102, which is not limited in the present invention. - In this step, since the data and the feedback information are expected to be multiplexed in the first sidelink channel, the transmitter may transmit the first target indication information to the receiver through the fourth sidelink channel, so as to facilitate the receiver to be informed whether the data and the feedback information are included in the first sidelink channel that is received currently.
- Or, the receiver defaults that the transmitter transmits the data and the feedback information simultaneously through the first sidelink channel, and thus the transmitter may also transmit the second target indication information to the receiver through the fourth sidelink channel, so as to make the receiver demodulate the feedback information correctly.
- According to an example of the present invention, in one or more embodiments, the transmitter may also transmit the first target indication information and the second target indication information to the receiver through the fourth sidelink channel.
- The second target indication information is configured to indicate a modulation and coding efficiency at which the feedback information is transmitted through the third sidelink channel. In one or more embodiments, the second target indication information may indicate a ratio of the modulation and coding efficiency of the data with respect to that of the feedback information.
- For example, M is the bit number of the data to be transmitted, N is the number of time-frequency resources available for the first sidelink channel, K is the bit number of the feedback information to be transmitted, and the second target indication information indicates the ratio beta of the modulation and coding efficiency of the data with respect to that of the feedback information. Thus, when the feedback information and the data are multiplexed together for transmission, the number of time-frequency resources available for the feedback information is ceil(K*beta*N/M), and the remaining time-frequency resources are used by the data, where ceil() is a ceiling function.
- In the above example, the fourth sidelink channel is configured to transmit control information associated with the data. In one or more embodiments, the first sidelink channel may be taken as the fourth sidelink channel. Or, the fourth sidelink channel may be a separate channel for transmitting the control information.
- In an example, the
step 103 may be implemented in any one of the following ways. - In the first way, at least one of the first target indication information or the second target indication information is represented by a demodulation reference signal sequence in the fourth sidelink channel or by position information corresponding to the demodulation reference signal sequence.
- In this way, when transmitting the control information associated with the data to the receiver through the fourth sidelink channel, the transmitter may set the demodulation reference signal sequence corresponding to the fourth sidelink channel to a preset demodulation reference signal sequence.
- The receiver may determine, based on the preset demodulation reference signal sequence, that the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e., the first sidelink channel. Or, the receiver may determine, based on the preset demodulation reference signal sequence, that the second target indication information indicates a preset value. Or, based on the preset demodulation reference signal sequence, the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e., the first sidelink channel, and determine that the second target indication information indicates the preset value.
- Of course, the receiver may determine, if the demodulation reference signal sequence corresponding to the fourth sidelink channel does not adopt the preset demodulation reference signal sequence, that the first target indication information indicates that the feedback information is not included in the third sidelink channel, i.e., the first sidelink channel.
- Alternatively, in an example of the present invention, the transmitter may set the demodulation reference signal sequence to a designated position. Thus, if the demodulation reference signal sequence is detected by the terminal at the designated position, the receiver determines that the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e, the first sidelink channel, or determines that the second target indication information indicate the preset value, or determines that the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e., the first sidelink channel, and that the second target indication information indicates the preset value.
- If the demodulation reference signal sequence is not detected by the receiver at the designated position, the receiver may determine that the first target indication information indicates that the feedback information is not included in the third sidelink channel, i.e., the first sidelink channel.
- Supposing that the demodulation reference signal sequence carried in the fourth sidelink channel is located at the designated position, for example, on the 0th, 4th, and 8th REs of every Resource Block (RB), it means that the first target indication information indicates that the target information in the first sidelink channel includes the data and the feedback information, and/or means that the second target indication information indicates the preset value.
- If the demodulation reference signal sequence carried in the fourth sidelink channel is located at other positions, for example, on the 1st, 5th, and 9th REs of every RB, it means that the first target indication information indicates that the feedback information is not included in the first sidelink channel.
- In the above example, the transmitter may represent at least one of the first target indication information or the second target indication information by a demodulation reference signal sequence or position information corresponding to the demodulation reference signal sequence in the fourth sidelink channel, which reduces the number of bits occupied by the control information and has a high availability.
- In the second way, target control information is transmitted to the receiver through the fourth sidelink channel. The target control information carries at least one of the first target indication information or the second target indication information.
- In this way, the target control information may be Sidelink Control Information (SCI). The SCI is essential control information transmitted by the transmitter to the receiver in the sidelink communication. In an example of the present invention, the transmitter may add respective information field(s) corresponding to the first target indication information and/or the second target indication information into the SCI, so that at least one of the first target indication information or the second target indication information is transmitted to the receiver through the SCI.
- The first target indication information, which is taken as an example, is represented by adding only a 1-bit information field into the SCI. For example, when the bit value of the information field corresponding to the first target indication information is 1, it means the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e., the first sidelink channel, and when the bit value of the information field corresponding to the first target indication information is 0, it means the first target indication information indicates that the feedback information is not included in the third sidelink channel, i.e., the first sidelink channel.
- The reverse may work similarly. When the bit value corresponding to the information field is 1, it means the first target indication information indicates that the feedback information is not included in the third sidelink channel, i.e., the first sidelink channel, and when the bit value corresponding to the information field is 0, it means the first target indication information indicates that the data and the feedback information are included in the third sidelink channel, i.e., the first sidelink channel.
- Taken the second target indication information as an example, a specific value corresponding to the second target indication information may be represented by adding information field of at least one bit into the SCI, or the second target indication information is made to indicate the preset value by adding information field of at least one bit.
- For example, when the bit value of the information field corresponding to the second target indication information is 01, it means the second target indication information indicates 01 or a first preset value a corresponding to 01, and when the bit value of the information field corresponding to the second target indication information is 10, it means the second target indication information indicates 10 or a second preset value b corresonding to 10.
- In the above example, the transmitter may further transmit the target control information to the receiver through the fourth sidelink channel, and the target control information carries at least one of the first target indication information or the second target indication information. Compared with the first way of the
step 103 described above, it reduces a complexity of blind channel detection at the receiver and has a high availability. - In an example, if the feedback information includes a plurality of pieces of sub-information corresponding to different feedback information types, for example, HARQ feedback information and CSI are included simultaneously, the transmitter may transmit a modulation and coding rate, at which sub-information with a designated feedback information type is transmitted through the third sidelink channel, to the receiver.
- For example, if the designated feedback information type is of HARQ feedback information, the transmitter may transmit the modulation and coding efficiency corresponding to the HARQ feedback information to the receiver through the fourth sidelink channel.
- In one or more embodiments, the designated feedback information type may come from all feedback information types or a part thereof, which is not limited in the present invention. The transmitter may set different modulation and coding rates, at which the sub-information of respective designated feedback information types is transmitted through the third sidelink channel, to a same value or different values.
- For example, the modulation and coding efficiency corresponding to the HARQ feedback information is a1, and the modulation and coding efficiency corresponding to the CSI is a2. The value of a1 and the value of a2 may be the same or different, which is not limited in the present invention.
- Different modulation and coding rates bring different reliability of the sub-information of the respective feedback information types. The lower the modulation and coding rate, the higher the reliability of the sub-information of the corresponding feedback information type.
- In the above example, in the case that the feedback information to be transmitted by the transmitter includes the plurality of pieces of sub-information corresponding to different feedback information types, the transmitter may transmit to the receiver the modulation and coding efficiency at which the sub-information with the designated feedback information type is transmitted through the third sidelink channel. Thereafter, the receiver can correctly demodulate the plurality of pieces of sub-information of different feedback information types.
- In an example, referring to
FIG. 3 , which is a flowchart illustrating another sidelink-based transmission method according to the example illustrated inFIG. 1 , if the one or more resources occupied by the first sidelink channel are selected by the transmitter, the method may further include the following step. - At
step 104, one or more resources that do not overlap with the one or more resources occupied by the second sidelink channel in time resource are selected as the one or more resources occupied by the first sidelink channel. - In this step, if the one or more resources occupied by the first sidelink channel may be selected by the transmitter, the transmitter may select one or more resources that do not overlap with the one or more resources occupied by the second sidelink channel in time resource as the one or more resources occupied by the first sidelink channel. Therefore, it can avoid a conflict in the time domain between the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel.
- Of course, when the transmitter selects the one or more resource that do not overlap with the one or more resources occupied by the second sidelink channel in time resource as the one or more resources occupied by the first sidelink channel, it has been determined that the receiver address corresponding to the data is inconsistent with the receiver address corresponding to the feedback information and thus the data and the feedback information cannot be multiplexed in the third sidelink channel for synchronous transmission.
- According to the above example, in one or more embodiments, the second sidelink channel may be selected by the transmitter or another device, and said another device may be a base station, a receiver, or other third-party device, which is not limited in the present invention.
- In an example, referring to
FIG. 4 , which is a flowchart illustrating another sidelink-based transmission method according to the example illustrated inFIG. 1 , if the one or more resources occupied by the second sidelink channel are selected by the transmitter, the method may further include the following step. - At
step 105, one or more resources that do not overlap with the one or more resources occupied by the first sidelink channel in time resource are selected as the one or more resources occupied by the second sidelink channel. - In this step, if the one or more resources occupied by the second sidelink channel may be selected by the transmitter, the transmitter may select one or more resources that do not overlap with the one or more resources occupied by the first sidelink channel in time resource as the one or more resources occupied by the second sidelink channel. Therefore, it can avoid a conflict in the time domain between the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel.
- Of course, similarly, when the transmitter selects the one or more resource that do not overlap with the one or more resources occupied by the first sidelink channel in time resource as the one or more resources occupied by the second sidelink channel, it has been determined that the receiver address corresponding to the data is inconsistent with the receiver address corresponding to the feedback information and thus the data and the feedback information cannot be multiplexed in the third sidelink channel for synchronous transmission.
- According to the above example, in one or more embodiments, the first sidelink channel may be selected by the transmitter or another device, and said another device may be a base station, a receiver, or other third-party device, which is not limited in the present invention.
- Next, the sidelink-based transmission methods provided by the examples of the present invention are further introduced from a view of a receiver.
- An example of the present invention provides another sidelink-based transmission method, which is applicable to the receiver and includes the following step.
- At
step 201, target information transmitted by a transmitter through a first sidelink channel is received. The first sidelink channel is used for transmitting data for the sidelink, and the target information includes the data or includes the data and feedback information. - In the above example, the receiver receives the target information transmitted by the transmitter through the first sidelink channel. The first sidelink channel is used for transmitting the data for the sidelink, and the target information includes the data or includes the data and the feedback information. Therefore, during a process of the sidelink communication, it achieves a purpose that the data and the feedback information are multiplexed in the first sidelink channel used for transmitting the data for the sidelink.
- With respect to the
step 201, in the case that the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel conflict in a time domain, the transmitter transmits the target information, i.e., the data and the feedback information, to the receiver through a third sidelink channel, i.e., the first sidelink channel if a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information. The receiver receives the target information directly. - If the receiver address corresponding to the data is inconsistent with the receiver address corresponding to the feedback information, the data and the feedback information cannot be multiplexed in a same sidelink channel. Thus, in one or more embodiments, when a transmission priority of the data is higher than a transmission priority of the feedback information, the transmitter may transmit the target information, i.e., the data, to the receiver through the first sidelink channel. Similarly, the receiver can receive the target information directly.
- Of course, in an example of the present invention, if the receiver address corresponding to the data is inconsistent with the receiver address corresponding to the feedback information, and thus the data and the feedback information cannot be multiplexed in the same sidelink channel, when the transmission priority of the data is lower than or equal to the transmission priority of the feedback information, the transmitter may transmit the feedback information to the receiver through a second sidelink channel based on the related art. Similarly, the receiver can receive the feedback information directly.
- In an example of the present invention, it provides another sidelink-based transmission method, which is applicable to the receiver. Referring to
FIG. 5 , which is a flowchart illustrating a sidelink-based transmission method according to the example, besides thestep 201, the following step may be included. - At
step 202, at least one of first target indication information or second target indication information transmitted by the transmitter through a fourth sidelink channel is received. - In this step, if the target information is transmitted to the receiver by the transmitter through the first sidelink channel, the transmitter may further transmit at least one of the first target indication information or the second target indication information to the receiver through the fourth sidelink channel.
- The fourth sidelink channel is configured to transmit control information associated with the data; the first target indication information is configured to indicate whether the data and the feedback information are included in the third sidelink channel; and the second target indication information is configured to indicate a modulation and coding efficiency at which the feedback information is transmitted through the third sidelink channel. In one or more embodiments, the second target indication information may indicate a ratio of the modulation and coding efficiency of the data with respect to that of the feedback information.
- The receiver may receive at least one of the first target indication information or the second target indication information in any one of the following ways, where the at least one of the first target indication information or the second target indication information is transmitted by the transmitter through the fourth sidelink channel.
- In the first way, if a demodulation reference signal sequence received from the fourth sidelink channel indicates a preset demodulation reference signal sequence, it is determined that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and/or it is determined that the second target indication information indicates a preset value.
- In this way, if the demodulation reference signal sequence received by the receiver from the fourth sidelink channel indicates the preset demodulation reference signal sequence, the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel.
- Or, the receiver defaults that the data and the feedback information are included in the first sidelink channel. Thus, the receiver may determine that the second target indication information indicates the preset value if the demodulation reference signal sequence indicates the preset demodulation reference signal sequence.
- Or, the demodulation reference signal sequence received by the receiver from the fourth sidelink channel indicates the preset demodulation reference signal sequence. Thus, the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and also determine that the second target indication information indicates the preset value.
- Of course, if the demodulation reference signal sequence received by the receiver from the fourth sidelink channel does not indicate the preset demodulation reference signal sequence, the receiver may determine that the first target indication information indicates that the feedback information is not included in the first sidelink channel.
- In the second way, if position information corresponding to the demodulation reference signal sequence received from the fourth sidelink channel indicates a designated position, it is determined that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and/or it is determined that the second target indication information indicates a preset value.
- In this way, if the demodulation reference signal sequence received by the receiver from the fourth sidelink channel is located in the designated position, the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel.
- Or, the receiver defaults that the data and the feedback information are included in the first sidelink channel. Thus, the receiver may determine that the second target indication information indicates the preset value if the demodulation reference signal sequence is located in the designated position.
- Or, the demodulation reference signal sequence received by the receiver from the fourth sidelink channel is located in the designated position. Thus, the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and also determine that the second target indication information indicates the preset value.
- Of course, if the demodulation reference signal sequence received by the receiver from the fourth sidelink channel is not located in the designated position, the receiver may determine that the first target indication information indicates that the feedback information is not included in the first sidelink channel.
- In the third way, target control information transmitted by the transmitter through the fourth sidelink channel is received. The target control information carries at least one of the first target indication information or the second target indication information.
- In this way, the target control information may be SCI information. In one or more embodiments, it may configure corresponding information field(s) for at least one of the first target indication information or the second target indication information in the SCI information.
- When the bit value of the information field corresponding to the first target indication information is determined to be 1, the receiver may determine that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel. When the bit value of the information field corresponding to the first target indication information is 0, it means the first target indication information indicates that the feedback information is not included in the first sidelink channel. The reverse may work similarly.
- If the receiver determines that the bit value of the information field corresponding to the second target indication information is 01, it means the second target indication information indicates 01 or a first preset value a corresponding to 01, and if the bit value of the information field corresponding to the second target indication information is 10, it means the second target indication information indicates 10 or a second preset value b corresponding to 10.
- In an example, if the feedback information includes a plurality of pieces of sub-information corresponding to different feedback information types, for example, both HARQ feedback information and CSI, the transmitter may transmit a modulation and coding rate, at which sub-information with a designated feedback information type is transmitted through the third sidelink channel, to the receiver. The second target indication information received by the receiver may include the modulation and coding efficiency at which the sub-information with the designated feedback information type is transmitted by the transmitter through the first sidelink channel.
- For example, the designated feedback information types include an HARQ feedback type and an SCI type. Therefore, the receiver may receive the modulation and coding efficiency a1 corresponding to the HARQ feedback information and the modulation and coding efficiency a2 corresponding to the CSI, which are transmitted by the transmitter. The values of a1 and a2 may be the same or different. The modulation and coding efficiency of the sub-information corresponding to another feedback information type may be a preset modulation and coding efficiency b.
- Thereafter, the receiver may demodulate the corresponding sub-information from the first sidelink channel based on respective modulation and coding rates corresponding to the sub-information of different feedback information types according to the related art.
- In one example, referring to
FIG. 6 , which is a flowchart illustrating another sidelink-based transmission method not according to the present invention, the following steps may be included. - At
step 301, the transmitter determines whether one or more resources occupied by a first sidelink channel and one or more resources occupied by a second sidelink channel conflict in a time domain. - The first sidelink channel is used for transmitting data for the sidelink, and the second sidelink channel is used for transmitting feedback information for the sidelink.
- At
step 302, target information is transmitted to a receiver through a third sidelink channel if the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel conflict in the time domain. The target information includes at least one of the data or the feedback information. - According to the present invention, if a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information, the target information includes the data and the feedback information, and the first sidelink channel is taken as the third sidelink channel.
- If the receiver address corresponding to the data is inconsistent with the receiver address corresponding to the feedback information, the target information consists of the data or the feedback information. Further, if a transmission priority of the data is higher than that of the feedback information, the target information is the data, and the first sidelink channel is taken as the third sidelink channel; if the transmission priority of the feedback information is higher than or equal to that of the data, the target information is the feedback information, and the second sidelink channel is taken as the third sidelink channel.
- At
step 303, if the target information includes the data and the feedback information, the transmitter transmits at least one of the first target indication information or the second target indication information to the receiver through the fourth sidelink channel. - In the above example, the
step 303 may be performed before or at the time of performing thestep 302. The order of performing various steps is not limited in the examples of the present invention. - In the above example, in the case that one or more resources occupied by a data channel of a sidelink communication and one or more resources occupied by a feedback information channel of the sidelink communication conflict in a time domain, the data and the feedback information are multiplexed in the first sidelink channel when a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information. Therefore, during a process of the sidelink communication, it achieves a purpose that the data and the feedback information are multiplexed in the first sidelink channel used for transmitting the data for the sidelink. If the receiver address corresponding to the data is inconsistent with the receiver address corresponding to the feedback information, the information with higher transmission priority may be transmitted to the receiver through a corresponding sidelink channel, which achieves a purpose of transmitting the data or the feedback information to the receiver through the corresponding sidelink channel.
- Corresponding to the above method examples implementing application functions, the present invention also provides examples of apparatuses for implementing application functions, and examples of corresponding base stations and terminals. The following examples are not according to the invention and are present for illustration purposes only.
- Referring to
FIG. 7, FIG. 7 is a block diagram illustrating a sidelink-based transmission apparatus according to an example. The apparatus is applicable to a transmitter and includes: - a
conflict determining module 410 that is configured to determine whether one or more resources occupied by a first sidelink channel and one or more resources occupied by a second sidelink channel conflict in a time domain, where the first sidelink channel is used for transmitting data for the sidelink and the second sidelink channel is used for transmitting feedback information for the sidelink; and - a
first transmitting module 420 that is configured to transmit target information to a receiver through a third sidelink channel in response to determining that the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel conflict in the time domain, where the target information includes at least one of the data or the feedback information. - In one or more claimed examples of the present invention, the first sidelink channel is taken as the third sidelink channel in response to determining that the target information includes the data and the feedback information.
- Referring to
FIG. 8 , which is a block diagram illustrating another sidelink-based transmission apparatus on the basis of the example illustrated inFIG. 7 , the apparatus further includes:
asecond transmitting module 430 that is configured to transmit at least one of first target indication information or second target indication information to the receiver through a fourth sidelink channel. - The fourth sidelink channel is configured to transmit control information associated with the data; the first target indication information is configured to indicate whether the data and the feedback information are included in the third sidelink channel; and the second target indication information is configured to indicate a modulation and coding efficiency at which the feedback information is transmitted through the third sidelink channel.
- Referring to
FIG. 9 , which is a block diagram illustrating another sidelink-based transmission apparatus on the basis of the example illustrated inFIG. 8 , thesecond transmitting module 430 includes: - a first performing
submodule 431 that is configured to represent, by a demodulation reference signal sequence in the fourth sidelink channel, at least one of the first target indication information or the second target indication information; or - a second performing
submodule 432 that is configured to represent, by position information corresponding to the demodulation reference signal sequence in the fourth sidelink channel, at least one of the first target indication information or the second target indication information. - Referring to
FIG. 10 , which is a block diagram illustrating another sidelink-based transmission apparatus on the basis of the example illustrated inFIG. 8 , thesecond transmitting module 430 includes:
a transmittingsubmodule 433 that is configured to transmit target control information to the receiver through the fourth sidelink channel, where the target control information carries at least one of the first target indication information or the second target indication information. - Optionally, in response to determining that the feedback information includes a plurality of pieces of sub-information corresponding to different feedback information types, the second target indication information includes a modulation and coding efficiency at which sub-information with a designated feedback information type is transmitted through the third sidelink channel.
- In one or more examples, a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information.
- In one or more examples, the first sidelink channel is taken as the third sidelink channel in response to determining that the target information consists of the data; and
the second sidelink channel is taken as the third sidelink channel in response to determining that the target information consists of the feedback information. - Referring to
FIG. 11 , which is a block diagram illustrating another sidelink-based transmission apparatus on the basis of the example illustrated inFIG. 7 , the apparatus further includes:
a first selectingmodule 440 that is configured to select one or more resources that do not overlap with the one or more resources occupied by the second sidelink channel in time resource as the one or more resources occupied by the first sidelink channel in response to determining that the one or more resources occupied by the first sidelink channel are selected by the transmitter. - Referring to
FIG. 12 , which is a block diagram illustrating another sidelink-based transmission apparatus on the basis of the example illustrated inFIG. 7 , the apparatus further includes:
a second selectingmodule 450 that is configured to select one or more resources that do not overlap with the resource occupied by the first sidelink channel in time resource as the one or more resources occupied by the second sidelink channel in response to determining that the one or more resources occupied by the second sidelink channel are selected by the transmitter. - In one or more embodiments, a receiver address corresponding to the data is inconsistent with a receiver address corresponding to the feedback information.
- Referring to
FIG. 13 , which is a block diagram illustrating a sidelink-based transmission apparatus according to an example, the apparatus is applicable to a receiver and includes:
afirst receiving module 510 that is configured to receive target information transmitted by a transmitter through a first sidelink channel, where the first sidelink channel is used for transmitting data for the sidelink, and where the target information includes the data or includes the data and feedback information. - Referring to
FIG. 14 , which is a block diagram illustrating another sidelink-based transmission apparatus on the basis of the example illustrated inFIG. 13 , the apparatus further includes:
asecond receiving module 520 that is configured to receive at least one of first target indication information or second target indication information transmitted by the transmitter through a fourth sidelink channel. - The fourth sidelink channel is configured to transmit control information associated with the data; the first target indication information is configured to indicate whether the data and the feedback information are included in the third sidelink channel; and the second target indication information is configured to indicate a modulation and coding efficiency at which the feedback information is transmitted through the third sidelink channel.
- Referring to
FIG. 15 , which is a block diagram illustrating another sidelink-based transmission apparatus on the basis of the example illustrated inFIG. 14 , thesecond receiving module 520 includes:
a first determiningsubmodule 521 that is configured to determine, in response to determining that a demodulation reference signal sequence received from the fourth sidelink channel indicates a preset demodulation reference signal sequence, that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and/or that the second target indication information indicates a preset value. - Referring to
FIG. 16 , which is a block diagram illustrating another sidelink-based transmission apparatus on the basis of the example illustrated inFIG. 14 , thesecond receiving module 520 includes:
a second determiningsubmodule 522 that is configured to determine, in response to determining that position information corresponding to a demodulation reference signal sequence received from the fourth sidelink channel indicates a designated position, that the first target indication information indicates that the data and the feedback information are included in the first sidelink channel, and/or that the second target indication information indicates a preset value. - Referring to
FIG. 17 , which is a block diagram illustrating another sidelink-based transmission apparatus on the basis of the example illustrated inFIG. 14 , thesecond receiving module 520 includes:
a receivingsubmodule 523 that is configured to receive target control information transmitted by the transmitter through the fourth sidelink channel, where the target control information carries at least one of the first target indication information or the second target indication information. - In one or more embodiments, in response to determining that the feedback information includes a plurality of pieces of sub-information corresponding to different feedback information types, the second target indication information includes a modulation and coding efficiency at which sub-information with a designated feedback information type is transmitted by the transmitter through the first sidelink channel.
- For the apparatus examples, since they basically correspond to the method examples, reference may be made to the partial description of the method examples. The apparatus examples described above are merely illustrative, where the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, i.e., may be located in one place or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the present invention. Those of ordinary skill in the art can understand and implement without creative work.
- Correspondingly, the present invention also provides a computer-readable storage medium storing a computer program, which is not according to the invention and is present for illustration purposes only. The computer program is configured to execute any one of the sidelink-based transmission methods applicable to a transmitter side described above.
- Correspondingly, the present invention also provides a computer-readable storage medium storing a computer program, which is not according to the invention and is present for illustration purposes only. The computer program is configured to execute any one of the sidelink-based transmission methods applicable to a receiver side described above.
- Correspondingly, the present invention also provides a sidelink-based transmission apparatus, which is applicable to a transmitter and includes:
- a processor; and
- a memory, configured to store instructions executable by the processor;
- where the processor is configured according to the claimed invention, as defined by claim 14.
- As illustrated in
FIG. 18, FIG. 18 is a schematic structural diagram illustrating a sidelink-basedtransmission apparatus 1800 according to an example. Theapparatus 1800 is provided as a transmitter device. Referring toFIG. 18 , theapparatus 1800 includes aprocessing component 1822, a wireless transmission/reception component 1824, anantenna component 1826, and a signal processing part peculiar to a wireless interface. Theprocessing component 1822 further includes one or more processors. - One of the processors in the
processing component 1822 is configured to perform any one of the sidelink-based transmission methods applicable to the transmitter described above. - Correspondingly, the present invention also provides a sidelink-based transmission apparatus, which is applicable to a receiver and includes:
- a processor; and
- a memory, configured to store instructions executable by the processor;
- where the processor is configured according to the claimed invention, as defined by claim 15.
- As illustrated in
FIG. 19, FIG. 19 is a schematic structural diagram illustrating a sidelink-basedtransmission apparatus 1900 according to an example. Theapparatus 1900 is provided as a receiver device. Referring toFIG. 19 , theapparatus 1900 includes aprocessing component 1922, a wireless transmission/reception component 1924, anantenna component 1926, and a signal processing part peculiar to a wireless interface. Theprocessing component 1922 further includes one or more processors. - One of the processors in the
processing component 1922 is configured to perform any one of the sidelink-based transmission methods applicable to the receiver described above. - Other implementations of the present invention will be apparent to those skilled in the art from consideration of the specification and practice of the present invention within the scope of the invention as set forth in the appended claims.
Claims (15)
- A sidelink-based transmission method, the method comprisingdetermining (101), by a transmitter, whether one or more resources occupied by a first sidelink channel and one or more resources occupied by a second sidelink channel conflict in a time domain, wherein the first sidelink channel is used for transmitting data for the sidelink and the second sidelink channel is used for transmitting feedback information for the sidelink; andin response to determining that the one or more resources occupied by the first sidelink channel and the one or more resources occupied by the second sidelink channel conflict in the time domain,transmitting, by the transmitter, target information to a receiver through the first sidelink channel in response to determining that the target information comprises the data and the feedback information; wherein a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information.
- The method according to claim 1, further comprising:transmitting (103), by the transmitter, at least one of first target indication information or second target indication information to the receiver through a fourth sidelink channel;wherein the fourth sidelink channel is configured to transmit control information associated with the data;wherein the first target indication information is configured to indicate whether the data and the feedback information are comprised in the first sidelink channel; andwherein the second target indication information is configured to indicate a modulation and coding efficiency at which the feedback information is transmitted through the first sidelink channel.
- The method according to claim 2, wherein in response to determining that the feedback information comprises a plurality of pieces of sub-information corresponding to different feedback information types, the second target indication information comprises a modulation and coding efficiency at which sub-information with a designated feedback information type is transmitted through the first sidelink channel.
- The method according to claim 2, wherein transmitting (103), by the transmitter, at least one of the first target indication information or the second target indication information to the receiver through the fourth sidelink channel comprises at least one of following acts:representing, by a demodulation reference signal sequence in the fourth sidelink channel, at least one of the first target indication information or the second target indication information; orrepresenting, by position information corresponding to the demodulation reference signal sequence in the fourth sidelink channel, at least one of the first target indication information or the second target indication information.
- The method according to any one of claims 2-4, wherein transmitting (103), by the transmitter, at least one of the first target indication information or the second target indication information to the receiver through the fourth sidelink channel comprises:
transmitting target control information to the receiver through the fourth sidelink channel, wherein the target control information carries at least one of the first target indication information or the second target indication information. - The method according to claim 1, whereintransmitting, by the transmitter, the target information to the receiver through the first sidelink channel in response to determining that the target information consists of the data; andtransmitting, by the transmitter, the target information to the receiver through the second sidelink channel in response to determining that the target information consists of the feedback information.
- The method according to claim 1, further comprising:in response to determining that the one or more resources occupied by the first sidelink channel are selected by the transmitter, selecting (104), by the transmitter, one or more resources that do not overlap with the one or more resources occupied by the second sidelink channel in time resource as the one or more resources occupied by the first sidelink channel; orin response to determining that the one or more resources occupied by the second sidelink channel are selected by the transmitter, selecting (105), by the transmitter, one or more resources that do not overlap with the one or more resources occupied by the first sidelink channel in time resource as the one or more resources occupied by the second sidelink channel.
- The method according to claim 6 or 7, wherein a receiver address corresponding to the data is inconsistent with a receiver address corresponding to the feedback information.
- A sidelink-based transmission method, comprising:receiving (201), by a receiver, target information transmitted by a transmitter through a first sidelink channel,the first sidelink channel is used for transmitting data for the sidelink,a second sidelink channel is used for transmitting feedback information for the sidelink; andthe target information comprises the data and feedback information in a case that one or more resources occupied by the first sidelink channel and one or more resources occupied by the second sidelink channel conflict in a time domain, wherein a receiver address corresponding to the data is consistent with a receiver address corresponding to the feedback information.
- The method according to claim 9, further comprising:receiving (202), by the receiver, at least one of first target indication information or second target indication information transmitted by the transmitter through a fourth sidelink channel;wherein the fourth sidelink channel is configured to transmit control information associated with the data;wherein the first target indication information is configured to indicate whether the data and the feedback information are comprised in the first sidelink channel; andwherein the second target indication information is configured to indicate a modulation and coding efficiency at which the feedback information is transmitted through the first sidelink channel.
- The method according to claim 10, wherein in response to determining that the feedback information comprises a plurality of pieces of sub-information corresponding to different feedback information types, the second target indication information comprises a modulation and coding efficiency at which sub-information with a designated feedback information type is transmitted by the transmitter through the first sidelink channel.
- The method according to claim 10, wherein receiving (202), by the receiver, at least one of the first target indication information or the second target indication information transmitted by the transmitter through the fourth sidelink channel comprises:determining, in response to determining that a demodulation reference signal sequence received from the fourth sidelink channel indicates a preset demodulation reference signal sequence, that the first target indication information indicates that the data and the feedback information are comprised in the first sidelink channel, and/or that the second target indication information indicates a preset value; ordetermining, in response to determining that position information corresponding to a demodulation reference signal sequence received from the fourth sidelink channel indicates a designated position, that the first target indication information indicates that the data and the feedback information are comprised in the first sidelink channel, and/or that the second target indication information indicates a preset value.
- The method according to any one of claims 10-12, wherein receiving (202), by the receiver, at least one of the first target indication information or the second target indication information transmitted by the transmitter through the fourth sidelink channel comprises:
receiving target control information transmitted by the transmitter through the fourth sidelink channel, wherein the target control information carries at least one of the first target indication information or the second target indication information. - A sidelink-based transmission apparatus which configured to perform the method according to any one of claims 1 to 8.
- A sidelink-based transmission apparatus which configured to perform the method according to any one of claims 9 to 13.
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EP3962219A4 (en) * | 2019-05-14 | 2022-08-17 | LG Electronics Inc. | Method and apparatus for scheduling plurality of resources in nr v2x |
KR20220009391A (en) * | 2019-05-17 | 2022-01-24 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | Device and its wireless communication method |
US20210045074A1 (en) * | 2019-08-06 | 2021-02-11 | Qualcomm Incorporated | Timeline considerations for channel state information reporting of a sidelink channel |
CN112468271B (en) * | 2019-09-06 | 2022-01-25 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
CN114710839B (en) * | 2019-10-02 | 2023-12-22 | Oppo广东移动通信有限公司 | Wireless communication method and terminal device |
CN112788668B (en) * | 2019-11-06 | 2022-08-05 | 维沃移动通信有限公司 | Transmission processing method and terminal |
CN112994858B (en) * | 2019-12-17 | 2022-11-08 | 大唐移动通信设备有限公司 | Method and terminal for sending and receiving direct link positioning reference signal |
CN113271684A (en) * | 2020-02-14 | 2021-08-17 | 维沃移动通信有限公司 | Side link transmission control method, sending terminal and receiving terminal |
CN115942377A (en) * | 2021-08-05 | 2023-04-07 | 大唐移动通信设备有限公司 | Information processing method, terminal and readable storage medium |
WO2023065320A1 (en) * | 2021-10-22 | 2023-04-27 | Lenovo (Beijing) Limited | Methods and apparatuses for sidelink positioning |
CN116170887A (en) * | 2021-11-22 | 2023-05-26 | 华为技术有限公司 | Communication method and communication device |
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CN105530712B (en) * | 2014-09-30 | 2019-01-18 | 华为技术有限公司 | Direct connected link dispatching method, access point and terminal device |
US9706591B2 (en) * | 2014-11-05 | 2017-07-11 | Intel Corporation | Device to-device (D2D) transmit behavior |
CN107231702B (en) * | 2016-03-24 | 2021-09-10 | 中兴通讯股份有限公司 | Method for establishing direct link, method for realizing data transmission and node |
WO2018074876A1 (en) * | 2016-10-20 | 2018-04-26 | Lg Electronics Inc. | Method for performing sidelink transmission prioritized over the uplink transmission in wireless communication system and a device therefor |
US11324007B2 (en) | 2017-03-24 | 2022-05-03 | Samsung Electronics Co., Ltd. | Method and device for transmitting data |
US10863447B2 (en) * | 2018-07-11 | 2020-12-08 | Samsung Electronics Co., Ltd. | Method and apparatus for multi-antenna transmission in vehicle to vehicle communication |
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